Google Authenticator is a mobile application that provides two-factor authentication (2FA). It generates a time-based one-time passcode (TOTP) used to enhance account security. After enabling 2FA on a compatible service, users scan a QR code with the app, which then produces a unique code every 30 seconds. This code is used alongside the regular password to add an extra layer of security and prevent unauthorized access.

Yes, Google Authenticator is accessible on both Android and iOS. Users can download it from the Google Play Store for Android devices and the Apple App Store for iOS. The app is free, requires minimal setup, and helps users quickly secure their accounts across multiple devices.

Yes, transferring your Google Authenticator codes to a new device is possible. Google offers an export feature to migrate accounts from one device to another. You export from the old device and import on the new by scanning a QR code. It’s important to complete this transfer before resetting or selling your old phone to avoid losing access.

If you lose access to Google Authenticator, you can recover your accounts using backup options like recovery codes or backup phone numbers, if previously set up. These options are typically provided during the 2FA setup. Keep these backup methods secure, as they are crucial for regaining account access if your device or app is lost or compromised.

Yes, Google Authenticator functions offline by generating time-based codes without needing an internet connection. It relies on your device’s internal clock to produce codes. This makes it convenient for use without internet access, though internet is required initially for setup and for time synchronization.